“Cumulative percent cover”
Hypothesis: We will see increased exotic species percent cover and diversity with increased time since restoration.
Results: Increase in total exotic percent cover over time, driven by WT1, WT2, PH1, & especially RT.
Results: Increase in total exotic species richness over time, driven by WT2, PH1, and especially WT1 & RT.
Results: Increase in total exotic species biomass over time, driven by WT1 and especially RT.
Results: Increase in total native percent cover over time (but peak in years 3-5), driven by WT1, MS, & CS.
Results: Decrease in total native species richness over time.
Hypothesis: One exotic is becoming dominant (POMO)
Results: Exotic increases largely driven by grasses (UNK GRASS, FEMY, POMO)
Preliminary conclusion: Pools surrounded by houses receive less exotic seed input
Results:
Results: Deeper pools (WT2, TP) have less total exotic percent cover.
Hypothesis: Diversity of natives has increased over time, while diversity of exotics has decreased over time.
Results: No obvious trends.
Results: Exotic species richness decreases over time. Native species richness also decreases over time.
Results: Exotic species richness decreased from 2016 seed bank. Native species richness decreased from 2016 seed bank. RT and WT1 especially different; differences in seed bank correlate with change in species composition over time.